1 . "While protected areas are generally designed to be safe havens, unchecked human pressures car have a negative impact," says zoologist Femke Broekhuis, lead author of a new study by the University of Oxford that has raised questions about levels of tourism in protected areas.
The study focused on female cheetahs（非洲猎豹）in the Maasai Mara National Reserve, Kenya. Cheetahs have babies of one to six, few of which make it to adulthood. The study claims that the already low cubs（幼崽）survival rate is made even worse by tourist pressure. It found that one or no cub survived to adulthood in areas with high levels of tourism, while an average of two survived in areas with low levels.
The higher death rate is likely to be caused by poor food supplies for the cubs. "Cheetahs, especially those with cubs, are a major tourist attraction and commonly attract large numbers of vehicles," says Broekhuis. "High tourist numbers have been found to negatively impact cheetah hunts and even if a hunt is successful, the presence of tourists can result in a cheetah abandoning its kill."
While Broekhuis is eager to stress the positive role of conservation, she also admits the results are worrying. Cheetah numbers are already being squeezed. Predation（掠夺）from lions as well as habitat reduction means the big cats have experienced sharp population decline. In fact, their numbers are thought to have halved in Kenya in the past 40 years to around 7,000. They have also disappeared from 91 percent of their historic range.
Researchers suggest stricter limits on the number of cars allowed near the animals. Growth rates for cheetahs inside the protected areas need to be high if they are to make up for declines outside of them.
1. What is the text mainly about?| A．Cheetah numbers halved. |
| B．Conservation has a positive effect， |
| C．Tourism reduced cheetah numbers, |
| D．Tourists are not allowed to get close to cheetahs. |
| A．Because the birth rate is low, |
| B．Because hunman hunt them cruelly. |
| C．Because their habitat is reduced. |
| D．Because they have poor food supplies. |
| A．Disappointed | B．Worried. |
| C．Satisfied. | D．Shocked. |
| A．Set more preserves. | B．Stop hunting cheetahs. |
| C．Give cheetahs more food. | D．Limit cars near cheetahs. |
2 . “If music is the medicine of the soul, let it play on,” said a famous person. I think he said so probably because he had got some help from music. Music has some strange functions. Medical scientists have found that a person who feels stressed can actually listen to a certain kind of music and become relaxed.
Researchers said that since stress comes as a result of some events in life such as starting a new family, starting a new business and starting a new job, one can actually listen to good music and feel good because good music touches humans in a positive way. Music helps you forget these events that make you worried and remember the important events that once happened in your life.
Depression(抑郁症) is a disease caused by stress, smoking, social problems, etc. Depression is also caused by difficulties such as failure in business. Depression may bring us weakness, headaches and loss of concentration. Good music makes one remember happy moments or days. If you play music about love, it makes you feel like falling in love again though you may have had several upset experiences. And such good feelings make you healthy.
Anxiety is another health problem that can be controlled by music. Anxiety is one of the side effects of some major health problems such as liver cancer and breast cancer. Good music makes you feel relaxed and relieves the pain caused by these diseases and you will feel better. Good music also makes you sleep better, and you need to know that sleep puts your body in a healthy condition. Good sleep takes away the effects of stress, depression and anxiety from a person.
1. What do you know about music according to the famous person in Paragraph 1?| A．Music can treat many kinds of diseases. |
| B．Music can help you keep mentally healthy. |
| C．Music can take the place of medicine in treating illness. |
| D．Music can make you remember things that happened in the past. |
| A．By letting people have a good sleep. | B．By making people think positively. |
| C．By showing something new to people. | D．By making people focus only on important things. |
| A．Stress | B．Depression. | C．Anxiety. | D．Upset |
| A．The benefits of listening to music to health. |
| B．Stress can bring us many kinds of diseases. |
| C．Some diseases have something to do with music. |
| D．Tips for us to live a healthy and comfortable life. |
3 . A recent study suggests that vitamin D pills can help speed up the time taken for burns to heal, and prevent scarring(结疤). The vitamin, which is produced naturally in the body when the skin is exposed to sunshine, is believed to help protect against burning.
Previous studies have shown that vitamin D pills help decrease redness and swelling after sunburn, and may be one of the reasons why the body produces the chemical.
The research from Birmingham University, has found they may also help relieve other types of burn. Researchers monitored 38 patients who had suffered serious burns for a year and recorded their levels of vitamin D. They found that those with the highest levels of vitamin D had better wound healing and fewer scars.
Professor Janet Lord said: “Low vitamin D levels were associated with worse results in burn patients including life-threatening infections(感染),death and delayed wound healing. Major burn injury severely reduces vitamin D levels and adding this vitamin back may be a simple, safe and cost-effective way to improve the condition for burn patients.” Professor Lord and her team are now focusing on finding out why there is a rapid loss of vitamin D in patients immediately following burn injury and hope that they may be able to prevent this in future.
The amount of reduction in patients’ vitamin D levels was not related to the severity(严重程度) of the burn, so levels may also be decreased in minor burn injury, suggesting taking vitamin D pills could also help people with everyday burns. Public Health England now recommends that all Britons take vitamin D pills in the winter because it is impossible to make sufficient quantities in the darker months.
1. What does the new study find?| A．People with low vitamin D levels get burned easily. |
| B．Vitamin D helps with the recovery from burn injury. |
| C．Vitamin D pills aid in reducing the swelling from burns. |
| D．Vitamin D is more beneficial to serious burns than minor burns. |
| A．The severity of one's burn reflects his vitamin D levels. |
| B．Vitamin D pills are more needed in the autumn months. |
| C．Burn patients lacking vitamin D are at high risk of infection. |
| D．Minor burns have no effect on patients’ vitamin D levels. |
| A．The researchers. | B．Vitamin D pills. |
| C．Previous studies. | D．Some kinds of vitamins. |
| A．Vitamin D: A Necessity for Our Health |
| B．Vitamin D Pills: When Are They Needed? |
| C．Vitamin D: How Much Does the Body Need? |
| D．Vitamin D Pills: Heal Burns &. Prevent Scarring |
4 . Faced with a declining population and workforce, Japan has been increasingly turning to robots for help. Over the years, the robots have carried out a large number of human tasks, including building products and providing care for the elderly.
However, the robots currently being used by companies, like Walmart and Amazon, are only able to perform single, repetitive tasks, such as stacking boxes. Model-T, on the other hand, has a wider range of movement and is able to hold, pick and place objects of several different shapes and sizes into different locations, making it ideal for convenience and grocery stores, which sell a large variety of items.
Model-T robots are operated from a distant location by human “pilots” wearing a virtual reality (VR) headset and special gloves, which allow them to feel the product the robot is holding in their hands and guide it to the right shelf.
The VR-controlled robots are ten times cheaper than automated robots, because they don’t require advanced programming and are easier to develop and maintain. And their easy-to-use controls require little training. Tomohiro Kano, a general manager in charge of development at FamilyMart, believes this will enable the chain to recruit workers who would typically not work in stores.
Though Model-T appears to be getting rapidly through the experiments, it is not quite ready to enter the workforce. Besides being a lot slower than humans, it is also only able to lift packaged items, and cannot get hold of things such as fruits and vegetables. The company is working to improve the weaknesses and hopes to introduce a faster, more skillful Model-T within the next two years. They believe that in addition to the stores, the robots could also be useful in hospitals, allowing doctors to do operations from remote locations.
1. What is one of the features of Model-T according to the text?| A．It works much faster than humans. | B．It can easily hold all kinds of objects. |
| C．It can be operated from a distance away. | D．It is harder to produce than an automated robot. |
| A．The low price of Model-T. | B．The easiness to operate Model-T. |
| C．The low-level programming of Model-T. | D．The strict training for maintaining Model-T. |
| A．Model-T is now being massively produced. |
| B．Japan’s workforce will be reduced by Model-T. |
| C．The weaknesses of Model-T have been overcome. |
| D．Model-T may be used in wider fields in the future. |
| A．Technology. | B．Economy. | C．Lifestyle. | D．Environment. |
5 . Have you ever noticed that the stars sometimes appear brighter in December, January and February? There's a link between cold air and the night lights. "Part of it is that it tends to be drier in the winter," said Diane Tumshek, an astronomer at Carnegie Mellon University in Pittsburgh, Pennsylvania. Even though it's invisible, moisture can change the way light moves through the air. And in the summer, moisture can make stars appear more dull.
Air temperature is also what puts the twinkle twinkle in the little stars. "Even on very clear nights, some of the atmosphere is cooler, and some of the atmosphere is warmer,” said Tumshek, who also works with the Allegheny Observatory. And when the light from a star passes through those bubbles of varying temperatures, "it bends and shifts the light, so that we are seeing stars appear to dance or twinkle,” she said.
For star lovers in the United States, there's another factor that comes into play for bright winter stars, although this is a matter of coincidence. During Earth's journey around the sun, “there are just simply more bright stars visible from the Northern Hemisphere in the winter sky," Tumshek said. If you really want to see a shiny star, just try to find a burning ball of gas called Sirius near the horizon. At 8.6 light-years away, Sirius is relatively close to Earth and the brightest star visible in the night sky. It is also large — nearly twice as big as our sun and 20 times as bright. So this winter, when the world turns cold and it seems like we should be spending more time indoors, consider asking an adult to go exploring outside. With a warm coat and a clear sky, any night can be turned into a treasure hunt. All you have to do is look up.
1. What does the underlined word "dull" in Paragraph 1 probably mean?| A．not shiny | B．not exciting | C．not severe | D．not smart |
| A．By changing the bubbles around them. | B．By putting the twinkle twinkle in them. |
| C．By varying the direction of the light from them. | D．By making the stars dance and twinkle in the sky. |
| A．It can be found at any night. | B．It is 20 times as bright as the sun. |
| C．It is a burning and shiny ball. | D．It is closer to Earth than other stars, |
| A．To advocate stargazing in winter, | B．To call on people to focus on stars. |
| C．To present new research results about stars. | D．To explain why stars are more visible in winter. |
6 . Amsterdam,the capital and most populous city in the Netherlands，is one of the most popular travel destinations in the world，famous for its beautiful canals，top art museum，cycling culture，and Red Light District.Here are some of the key points to remember as you plan your trip to Amsterdam.
Must-See AttractionsMost visitors begin their Amsterdam adventure in the Old Centre,which is full of traditional architecture，shopping centers,and coffee shops.You’ll also want to check out Amsterdam’s Museum Quarter in the South District，which is great for shopping at the Albert Cuyp Market and having a picnic in the Vondelpark.The top museums to visit are the Rijksmusuem,the Ann Frank House,and the Van Gogh Museum.The Canal Ring is a UNESCO World Heritage Site that was originally built to attract wealthy home owners and is a popular place for celebrity spotting and nightlife today.
TransportationTravelers should be aware that Amsterdam Airport Schiphol is one of the busiest airports in the world.This airport is located about 15 kilometers southwest of city center.You can catch a train from Schiphol to Amsterdam Central Station，which has many connecting routes.It’s typically not a good idea to drive a car to the city center because traffic is heavy and parking is difficult to find.Cycling is incredibly popular here,and it’s easy to find cheap bike rentals around town.Amsterdam has a flat terrain(地形) and is a great city to explore on foot.
Money Saving TipsUnless you really want to see the tulips(郁金香) blooming，avoid booking between mid-March and mid-May.This is when hotel and flight prices rise.
Look for accommodations in Amsterdam’s South District，where rates are generally cheaper than in the city center.Buy train tickets at the machine instead of the counter to save a bit of money.
Instead of hiring a tour guide，hop on a canal boat.They’re inexpensive and will give you a unique point of view of the city.Check out our homepage to view price comparisons for flights,hotels,and rental cars before you book.
1. Which attraction was built with the original purpose of drawing the rich?| A．Albert Cuyp Market. | B．The Ann Frank House. |
| C．The Van Gogh Museum. | D．The Canal Ring. |
| A．The plane. | B．The train. |
| C．The car. | D．The bike. |
| A．Seeing the tulips blooming in spring. | B．Avoiding accommodating downtown. |
| C．Buying car tickets at the machine. | D．Hiring a local tour guide. |
7 . According to a recent study,a new genetically modified(转基因的）rice can prevent infections of HIV,the virus responsible for the disease AIDS.
The study reports the newly-developed rice produces proteins(蛋白质）that attach directly to the HIV virus. This process keeps the virus from mixing with human cells. The scientists say it can remove the effect of the virus and block its spreading.
The Joint United Nations Program on HIV/AIDS reports that worldwide, nearly 37 million people were living with HIV in 2017. The organization says the largest number of those are in ·developing countries. Nearly two-thirds of HIV cases are in Africa. Now there is no cure for HIV/AIDS though there have been developments in oral drug treatments to slow the progression of the disease.
The new study predicts the rice-based method will lead to long-term use of the anti-HIV treatment across the developing world. Researchers said the "groundbreaking" discovery is “realistically the only way" that anti-HIV combination treatments can be produced at a cost low enough for the developing world.
They say the easiest and most cost-effective way to use the rice will be to make it into a cream to be put on the skin. The HIV-fighting proteins can then enter the body through the skin. People all over the world could grow the rice and make the cream themselves. This would prevent the cost and travel required for many patients to receive treatments and medicine.
The process of changing the genetic structure of food crops has been debated for some time. Critics of genetically engineered crops believe they can harm people. The scientific team says further testing is needed to ensure that the genetic engineering process does not produce any additional chemicals that could be dangerous to people.
1. What is the third paragraph mainly about?| A．The terrible situations of HIV infections. |
| B．The rapid development of Africa. |
| C．The practical ways to cure AIDS. |
| D．The efforts made by the United Nations. |
| A．By transforming it into proteins. |
| B．By processing it into a cream. |
| C．By attaching it to the HIV virus. |
| D．By adding it to an oral drug. |
| A．It can prevent infections of HIV. |
| B．It has produced dangerous chemicals. |
| C．It is intended for the developed world. |
| D．It requires further testing to ensure the safety. |
| A．A biology textbook. |
| B．A first aid brochure. |
| C．A social web page. |
| D．A health magazine. |
8 . With fifteen years Britain and other nations should be well on with the building of huge industrial complexes for the recycling of waste. The word “rubbish” could lose its meaning because everything which goes into the dumps would be made into something useful. Even the most dangerous and unpleasant wastes would provide energy if nothing else.
The latest project is to take a city of around half a million inhabitants and discover exactly what raw materials go into it and what go out. The aim is to find out how much of these raw materials could be provided if a plant for recycling waste were built just outside the city. This plant would recycle not only metal such as steel, lead and copper, but also paper and rubber as well.
Another new project is being set up to discover the best ways of sorting and separating the rubbish. When this project is complete, the rubbish will be processed like this: First, it will pass through sharp metal bars (金属条) which will tear open the plastic bags in which rubbish is usually packed; then it will pass through a powerful fan to separate the lightest elements from the heavy solids; after that founders and rollers will break up everything that can be broken. Finally, the rubbish will pass under magnets (磁铁), which will remove the bits of iron and steel; the rubber and plastic will then be sorted out in the final stage.
The first full-scale giant recycling plants are perhaps fifteen years away. Indeed, with the growing cost of transporting rubbish to more distant dumps (垃圾场), some big cities will be forced to build their own recycling plants before long.
1. What is NOT mentioned as a part of the recycling process described in Paragraph 3?| A．Sharpening metal bars. |
| B．Sorting out small pieces of metal. |
| C．Breaking up whatever is breakable. |
| D．Separating light elements from the heavy ones. |
| A．To protect the environment. | B．To reduce transportation expense. |
| C．To get raw materials locally. | D．To get big profits from those plants. |
| A．Dangerous wastes can’t be recycled. |
| B．Recycling plant only recycle metal and paper. |
| C．Rubbish will be dealt with in a better way later. |
| D．The first full-scale giant recycling plants will begin operation in less than 15 years. |
| A．Scientific Ways to Get Energy | B．The Location of Recycling Plants |
| C．Some Methods to Protect the Environment | D．New Ways of Recycling Wastes |
9 . In the book The Best Little Girl in the World，Kessa has a serious eating disorder (进食障碍) called anorexia nervosa. But she is not alone. Many people have this eating disorder.
In the beginning of her story, Kessa is a normal 15-year-old girl. She is good at many things，especially dancing. She has danced for many years and loves it. One day her dance teacher tells her to continue eating right, but maybe lose a few pounds. Once Kessa hears this, she takes things too far. Instead of cutting down on snacks and junk food, she decides not to eat at all. She does not eat breakfast, lunch or dinner. She begins losing weight and becomes slimmer (更加苗条的) and slimmer. But she loses weight to a point where she is unhealthy.
As her poor eating habits continue, her parents start getting as much help as possible to cure their beautiful daughter. But it is just as hard for Kessa’s parents to deal with her disorder as it is for her.
Every day she exercises to lose more pounds and plans what and when she will eat. Her parents try everything, but Kessa decides not to have any fat on her body. Kessa’s doctor and parents finally take her to the hospital. She is now so thin that she can hardly walk. There, she is given good care.
In the rest of the book, Kessa goes through a lot of trouble in order to cure her eating disorder. This book, I think, can help to prevent people from doing this to themselves. It shows the trouble that people go through just to be slimmer, and all the terrible things they must experience to be cured. It is a book I think every teenager should read.
1. What does Kessa do to lose weight?| A．She stops eating. |
| B．She eats less junk food. |
| C．She has three small meals a day. |
| D．She dances many more hours a day. |
| A．It is caused by her dance teacher. |
| B．It’s too serious to be cured. |
| C．It makes her suffer a lot. |
| D．It’s an unusual illness. |
| A．how to cure eating disorders |
| B．the importance of eating right |
| C．a girl’s fight against an eating problem |
| D．why so many people have eating disorders |
| A．share a moving story with readers |
| B．give teenagers some advice on eating habits |
| C．tell parents to take good care of their children |
| D．warn people not to make the same mistake as the girl |
10 . My daughter was being thrown out of the sixth grade. The teacher said, “She may not be up to what we’re trying to accomplish.” He was really saying she didn’t have the intelligence. I got mad because I knew she was smart, just as my father had known I was smart when I was failing in school. We had her tested. I decided to get myself tested as well, and found that the troubles she was having were exactly what I had had — dyslexia. By then I was a successful television writer, and had won an Emmy Award for “The Rockford Files.”
If I had known earlier that something beyond my control could explain why I was a low achiever, I may not have worked so hard in my late 20s and early 30s. I was writing and writing. I was working for no other reason than to hear people praise me, because I did badly in all my courses.
I once asked a friend who had always gotten an A, “How long did you study for this?” He said, “I didn’t. I just glanced at it.” So he must be smarter. I began to ask, “What will happen to me when I’m not good at anything?” Despite my doubts, I did become successful, and people now say to me, “So you’ve overcome dyslexia.”
No. You don’t overcome it, you learn to compensate for it. Some easy things are very hard for me. Most people who go through college read twice as fast as I do. I avoid dialing a phone if I can, because I sometimes have to try three times to get the number right.
Despite my weaknesses I view dyslexia as a gift, not a curse (诅咒). Many dyslexics are good at right-brain, abstract thought, and that’s what my kind of creative writing is. And I can write quickly, and can get up to 15 pages a day. Writing is my strength.
The real fear I have for dyslexic children is not they have to struggle in school, but that they will quit on themselves before they get out of school. Parents have to create victories for them, whether it’s music, sports or art. You can make your dyslexic child able to say, “Yeah, reading is hard. But I have other things I can do.”
1. The writer decided to get himself tested as well because he________.| A．wanted to know if they had the same problem |
| B．didn’t believe his daughter had the problem |
| C．had to take a regular medical examination |
| D．accepted that his daughter was not smart |
| A．struggled and got better grades |
| B．didn’t work hard when he was young |
| C．was praised for overcoming dyslexia |
| D．was thankful not knowing of dyslexia earlier |
| A．is less intelligent | B．always fails in school |
| C．reads more slowly than normal people | D．performs worse in left-brain activities |
| A．Clumsy birds have to start flying early. | B．God shuts one door but opens another. |
| C．Never judge a person by his appearance. | D．No one can make a good coat with bad cloth. |
